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US 11,168,180 B2Granted
Polyethylene glycol derivative and preparation method thereof
AssigneeHanmi Fine Chemical Co., Ltd.
InventorsYong Gyu Jung, Bo Sung Kwon, Seung Hwan Kwak, Eun Rang Park, Kyung Do Kim, Hyun Sik Yun, Hyung Woo Lee, Young Bum Cho
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Abstract
The present invention relates to a polyethylene glycol derivative and a preparation method thereof. A preparation process of a polyethylene glycol derivative, according to the present invention, may provide a novel polyethylene glycol derivative which can be utilized in various ways as a drug linker, and is appropriate and effective for mass production and is advantageous in reproducible mass production of high-quality products.
Claims4
A compound of Formula 10 below:
- wherein Et is ethyl, Bn is benzyl, and n is an integer from 3 to 2000.
Dependencies are inferred from the claim text.